JP3071945U - Net for preventing falling objects in tunnel - Google Patents

Abstract

(57) [Summary] [Purpose] The aim is to prevent accidents caused by falling objects, such as concrete pieces or installations, from which the inner wall has peeled off in tunnels. A device for automatically detecting and notifying a falling object by a vibration sensor (3, 3 ') with a code number and a net device (1', 1 ') stretched over an inner wall to receive a falling object in a tunnel.

Description

[Detailed description of the invention]

[0001]

[Industrial applications]

 The present invention is to prevent accidents such as trains and automobiles caused by falling concrete debris on the inner wall and falling objects inside the tunnel, and to ensure safety.

[0002]

[Prior art]

 Accidents caused by falling concrete pieces or installations from which the inner wall of the tunnel has peeled have become a major problem.However, in the past, a hammer was used to examine the walls where the peeling was likely to occur, and the inspection was conducted by listening to the hammering sound. There was only an inspection method. There was nothing to detect accidental falling objects, detect them, alert the point of fall, prevent accidents throughout the tunnel, and ensure safety.

[0003]

[Problems to be solved by the invention]

 There is a concern about a major accident when an obstacle falls in the tunnel, and measures to prevent the accident are urgent. In response to this urgent task, the present invention catches obstacles that fall due to shocks such as vibrations and wind pressure when passing trains, prevents accidents before they occur, detects falling objects, It is to notify the department automatically.

[0004]

[Means for Solving the Problems]

 In the case of a railway tunnel for trains, the net woven with an electrical insulator such as nylon rope is divided into appropriate sections and the left and right inner walls surrounding the overhead line so that the pantograph does not get caught along the inner wall of the tunnel. Then, stretch the net from the middle to the top to secure it and catch the falling objects. When falling objects are received by the net, when they fall, and when they fall under the wind pressure of the train, they vibrate like insects on a spider web. Detects and automatically notifies the department in charge of the location of the falling object using the number of the vibration sensor.

[0005] In the case of an automobile tunnel, a durable wire mesh or nylon net is attached to the ceiling so that falling objects can be received and fixed, and a falling object is detected by a vibration sensor installed on the net, and that point is detected. Notify the responsible department automatically. In the case of a long tunnel on a highway, for example, divide the road into appropriate sections and install a network device equipped with a vibration sensor with a code number in each section. Make it understandable.

[0006]

[Action]

 This device can catch falling objects and prevent accidents.Furthermore, since the location of the fall is automatically notified to the responsible department, the fallen object can be quickly eliminated and the safety of transportation is improved. Can be secured.

[0007]

【Example】

 Embodiments will be described with reference to the drawings. As shown in Fig. 1 and Fig. 2, in a train tunnel, an overhead wire runs through the upper part of the tunnel, so that a short-circuit accident does not occur. The net 1 and the net 1 'are securely fixed to the inner wall of the left and right tunnel inner walls 4 from the middle stage to the upper stage with the net support fittings 2 driven into the concrete 6 of the tunnel. ′. The nets will be installed in appropriate sections, and a vibration sensor with a pair of code numbers on each side will be attached to each section. When a falling object is received by a net, the vibration sensor detects the vibration of the falling object and the vibration caused by the wind pressure that occurs when the falling object passes through the train, and automatically notifies the department in charge of the detection and the number of the detected vibration sensor Therefore, it is possible to know which section of which tunnel occurred.

In a tunnel for an automobile as shown in FIGS. 3 and 4, a net 1 is firmly fixed to a tunnel inner wall 4 at a ceiling portion by a net support 2 driven into concrete 6, and a code number is assigned to an upper portion. Attach the vibration sensor 3. Vibration when a falling object is received is detected by a vibration sensor, as in the case of a train tunnel, and is automatically reported to the responsible department. The position of the falling object can be known from the number of the vibration sensor that detected the falling object. To remove falling objects, both the train tunnel and the car tunnel can be easily removed by removing the lower part of the net from the net support bracket.

[0009]

[Effect of the invention]

 Since the present invention is configured as described above, it has the following effects.

The net device according to claim 1 can be attached to the inner wall of the tunnel to catch falling objects such as peeled pieces of concrete in the event of an emergency, and to prevent accidents involving human life such as derailment and destruction of trains. Can be prevented. In particular, for high-speed Shinkansen bullet trains, there is a concern that a train may ride on a falling object on the track and cause a catastrophe, and it is desired that immediate measures be taken, and the present invention has a great effect on this. I can do it.

The falling object received by the net according to the second aspect is automatically detected by a vibration sensor attached to the net, and a falling point is notified to a department in charge by the number of the detected vibration sensor. For this reason, it is possible to quickly remove falling objects and repair missing tunnels.

[Brief description of the drawings]

FIG. 1 is a cross-sectional view of a tunnel in which the apparatus is mounted on a train tunnel.

FIG. 2 is a perspective view of a tunnel in which the device is mounted on a train tunnel.

FIG. 3 is a cross-sectional view of a tunnel in which the device is mounted on a tunnel for an automobile.

FIG. 4 is a perspective view of a tunnel in which the apparatus is mounted on a tunnel for a vehicle.

[Explanation of symbols]

 DESCRIPTION OF SYMBOLS 1 Net 2 Net support bracket 3 Vibration sensor 4 Tunnel inner wall 5 Insulator 6 Concrete 7 Overhead wire

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[Procedure amendment]

[Submission date] April 17, 2000 (2004.1.
7)

[Procedure amendment 1]

[Document name to be amended] Statement

[Correction target item name] Claims for utility model registration

[Correction method] Change

[Correction contents]

[Utility model registration claims]

Claims (2)

[Utility model registration claims] 1. A net device to be attached to an inner wall of a tunnel in order to catch a falling object such as a piece of concrete or an installed object due to separation of the inner wall of the tunnel. 2. A device for automatically detecting and notifying the vibration of a falling object received by the net by a vibration sensor attached to the net.